Starrett 54912 Low Carbon Steel Flat Stock Aisi C1018

Product Description

The STARRETT 54912 is a low carbon steel flat stock bar cut to 24 inches in length, 1.5 inches wide, and 5/32 inch (0.156 inches) thick. It is manufactured to AISI Type C1018 material specification, a mild steel grade commonly used in fabrication shops, machine shops, and maintenance applications requiring accurate flat bar stock. The piece ships as a single bar weighing 1.6 pounds. Dimensional tolerances are tightly held: length tolerance is plus 0.625 inches, width tolerance is plus 0.000 to 0.005 inches, and both thickness and squareness tolerances are held to plus or minus 0.001 inches. Machinists, fabricators, and maintenance technicians use this stock for brackets, shims, frames, and general metalworking projects.

This flat bar is suited for light fabrication, repair work, and prototype or production machining in residential, commercial, and industrial settings. The C1018 low carbon alloy machines cleanly and accepts welding, drilling, tapping, and surface grinding without special preparation. It is a standard choice when a readily workable mild steel with consistent cross-section and tight width and thickness tolerances is required. Applications include support brackets, spacers, slide rails, and structural tie plates in mechanical and HVAC equipment assemblies.

Key Features

• AISI Type C1018 low carbon steel for easy machining, welding, and drilling
• Tight thickness and squareness tolerances of plus or minus 0.001 inches for precision fitment
• Width tolerance held to plus 0.000 to 0.005 inches for consistent cross-section
• 24-inch nominal length with plus 0.625-inch length tolerance
• Single-piece packaging at 1.6 pounds net weight

Compatibility

Designed as a general-purpose low carbon steel flat bar for fabrication, machining, and maintenance applications where AISI C1018 mild steel flat stock is specified.

Installation Notes

Cut, drill, or grind to final dimensions using standard metalworking tooling appropriate for mild steel. Wear appropriate PPE including eye protection and gloves when cutting or grinding. Deburr all cut edges before handling or assembly. Consult applicable facility safety and fabrication codes before welding or heat-treating.